我正在尝试制作我的第一个基于 php 的网站，但遇到了问题。该网站非常基础，旨在允许用户将学生信息输入数据库。我按照 Derek Banas 的教程建立了这个网站，可以在此处找到该教程:
https://www.youtube.com/watch?v=mpQts3ezPVg&t=25s .
每当我尝试在浏览器中打开 getStudentInfo.php 文件时，我都会收到以下错误:
Warning: require_once(C:\xampp\htdocs\practiceWebDev): failed to open stream: Permission denied in C:\xampp\htdocs\practiceWebDev\practicePHPmySQL\getStudentInfo.php on line 3
Fatal error: require_once(): Failed opening required '../../practiceWebDev' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\practiceWebDev\practicePHPmySQL\getStudentInfo.php on line 3
此错误是否意味着我的代码有问题？或者我是否需要更改与 XAMPP 关联的 php.ini 或 httpd.conf 文件？下面是我处理连接的文件(如果它们有用的话)。非常感谢大家提供的任何反馈。另外，我使用 mysql 作为我的数据库。
mysqli_connect.php:
<?php
//IMPORTANT! This file must be saved outside of where the rest of my files related to our website are saved so that no one may access them.
DEFINE ('DB_USER' 'studentweb');
DEFINE ('DB_PASSWORD' 'turtledove');
DEFINE ('DB_HOST' 'localhost');
DEFINE ('DB_NAME' 'studentdatabase');
$databaseConnection = @mysqli_connect(DB_USER, DB_PASSWORD, DB_HOST, DB_NAME)
//using the above @ symbol before mysqli_connect makes it so errors will not appear in the browser.
//@ is known as the 'error control operator', and makes PHP suppress error messages associated with the expression.
OR die('Could not connect to MySql lol' . mysqli_connect_error());
//mysqli_connect_error() is a function defined in the php synthax.
?>
getStudentInfo.php:
<?php
//now we require the file outside of the current directory called mysqli_connect.php
require_once('../../practiceWebDev');
//the query below will display the information from each student in the form of a table.
$query = "SELECT first_name, last_name, email, street, province,
postal_code, phone_num, birth_date, sex, date_entered,
lunch_cost, student_id, FROM students";
//the response below is all the info that we've gotten that we want to show in our table.
$response = @mysqli_query($databseConnection, $query);
//below we will see if the query executed properly.
if($response)
{
echo '<table align="left" cellspacing="5" cellpadding="8">
<tr><td align="left"><b>First Name</b></td>
<td align="left"><b>Last Name</b></td>
<td align="left"><b>Email</b></td>
<td align="left"><b>Street</b></td>
<td align="left"><b>City</b></td>
<td align="left"><b>State</b></td>
<td align="left"><b>Zip</b></td>
<td align="left"><b>Phone</b></td>
<td align="left"><b>Birth Day</b></td></tr>';
while($row = mysqli_fetch_array($response)){
echo '<tr>';
echo '<td align=left">'.$row['first_name'].'</td><td align="left">'.$row['last_name'].'</td><td align="left">'.$row['email'].'</td>';
echo '<td align="left">'.$row['street'].'</td><td align="left">'.$row['city'].'</td><td align="left">'.$row['state'].'</td>';
echo '<td align="left">'.$row['zip'].'</td><td align="left">'.$row['phone'].'</td><td align="left">'.$row['birth_date'].'</td>';
echo '</tr>';
}
echo '</table>';
}
else
{
echo "Couldn't issue database query";
echo mysqli_error($databseConnection);
}
mysqli_close($databseConnection);
?>
studentadded.php
<html>
<head>
<title>Add Student</title>
</head>
<body>
<!--First, we need to check if this page was actually reached when the form was submitted--->
<?php
//Below we check that a POST operation was completed by the button I have named "submitButton"
if(isset($_POST['submitButton']))
{
$data_missing = array();
/*If there is an empty field when a POST operation is completed, that field's name will be
added to the data_missing array so that we may visually see which fields are not being sent*/
if(empty($_POST['first_name']))
{
$data_missing[] = 'First Name';
}
else
{
$f_name = trim($POST['first_name']);
}
if(empty($_POST['lastName']))
{
$data_missing[] = 'Last Name';
}
else
{
$l_name = trim($POST['lastName']);
}
if(empty($_POST['email']))
{
$data_missing[] = 'email';
}
else
{
$email = trim($POST['email']);
}
if(empty($_POST['street']))
{
$data_missing[] = 'street';
}
else
{
$street = trim($POST['street']);
}
if(empty($_POST['province']))
{
$data_missing[] = 'province';
}
else
{
$province = trim($POST['province']);
}
if(empty($_POST['postal_code']))
{
$data_missing[] = 'postal_code';
}
else
{
$postal_code = trim($POST['postal_code']);
}
if(empty($_POST['phone_num']))
{
$data_missing[] = 'phone_num';
}
else
{
$phone_num = trim($POST['phone_num']);
}
if(empty($_POST['birth_date']))
{
$data_missing[] = 'birth_date';
}
else
{
$birth_date = trim($POST['birth_date']);
}
if(empty($_POST['sex']))
{
$sex[] = 'sex';
}
else
{
$sex = trim($POST['sex']);
}
if(empty($_POST['lunch_cost']))
{
$data_missing[] = 'lunch_cost';
}
else
{
$lunch_cost = trim($POST['lunch_cost']);
}
if(empty($_POST['student_id']))
{
$data_missing[] = 'student_id';
}
else
{
$student_id = trim($POST['student_id']);
}
//Now lets check
if(empty($data_missing))
{
require_once('../mysqli_connect.php');
$myQuery = "INSERT INTO students (first_name, last_name, email, street, province,
postal_code, phone_num, birth_date, sex, date_entered, lunch_cost,
student_id) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), ?, NULL)";
$statement = mysqli_prepare($databaseConnection, $myQuery);
//We have to represent the data type for each of the value that will be passed into our database.
/*i Integers
d Doubles
b Blobs
s Everything Else*/
//Now lets bind variables to the '?'s passed in with the myQuery query.
mysqli_stmt_bind_param($statement, "sssssssisssd", $f_name, $l_name, $email, $street, $province,
$postal_code, $phone_num, $birth_date, $sex, $lunch_cost, $student_id);
mysqli_statement_execute($statement);
$affected_rows = mysqli_stmt_addected_rows($statement);
if($affected_rows == 1)
{
echo 'Went through properly! Student entered correctly!';
mysqli_stmt_close($statement);
mysqli_close($databaseConnection);
}
else
{
echo 'Error occurred :(';
echo '<br />';
echo mysqli_error();
mysqli_stmt_close($statement);
mysqli_close($databaseConnection);
}
}
else
{
echo 'You need to enter the following data my dude: <br />';
foreach($data_missing as $missingData)
{
echo "$missingData<br />";
}
}
}
?>
<form action="http://localhost/studentadded.php" method="post">
<b>Add a New Student</b>
<p>First Name: <input type="text" name="first_name" size="30" value="" /></p>
<p>Last Name: <input type="text" name="lastName" size="30" value="" /></p>
<p>Email: <input type="text" name="email" size="60" value="" /></p>
<p>Street: <input type="text" name="street" size="50" value="" /></p>
<p>Province: <input type="text" name="province" size="3" value="" /></p>
<p>Postal Code: <input type="text" name="postal_code" size="6" value="" /></p>
<p>Phone Number: <input type="text" name="phone_num" size="20" value="" /></p>
<p>Birth Date (YYYY-MM-DD): <input type="text" name="birth_date" size="20" value="" /></p>
<p>Sex: <input type="text" name="sexField1" size="5" maxlength="1" value="" />
<!---<p>Sex: <input type="radio" name="sexField" value="M" />
<br>
<input type="radio" name="sexField" value="F" checked /></p>--->
<!--<p>Date Entered: <input type="" name="" size="" value="" /></p>--->
<p>Lunch Cost: <input type="text" name="lunch_cost" size="5" value="" /></p>
<p>Student ID: <input type="text" name="student_id" size="10" value="" /></p>
<input type="submit" name="submitButton" value="submitValue">
<!-- type="submit" is a predefined term in html--->
</form>
</body>
</html>
addStudent.php
<html>
<head>
<title>Add Student</title>
</head>
<body>
<form action="http://localhost/studentadded.php" method="post">
<b>Add a New Student</b>
<p>First Name: <input type="text" name="first_name" size="30" value="" /></p>
<p>Last Name: <input type="text" name="lastName" size="30" value="" /></p>
<p>Email: <input type="text" name="email" size="60" value="" /></p>
<p>Street: <input type="text" name="street" size="50" value="" /></p>
<p>Province: <input type="text" name="province" size="3" value="" /></p>
<p>Postal Code: <input type="text" name="postal_code" size="6" value="" /></p>
<p>Phone Number: <input type="text" name="phone_num" size="20" value="" /></p>
<p>Birth Date (YYYY-MM-DD): <input type="text" name="birth_date" size="20" value="" /></p>
<p>Sex: <input type="text" name="sexField1" size="5" maxlength="1" value="" />
<!---<p>Sex: <input type="radio" name="sexField" value="M" />
<br>
<input type="radio" name="sexField" value="F" checked /></p>--->
<!--<p>Date Entered: <input type="" name="" size="" value="" /></p>--->
<p>Lunch Cost: <input type="text" name="lunch_cost" size="5" value="" /></p>
<p>Student ID: <input type="text" name="student_id" size="10" value="" /></p>
<input type="submit" name="submitButton" value="submitValue">
<!-- type="submit" is a predefined term in html--->
</form>
</body>
</html>
最佳答案
从我在这个地址的教程文件中可以看到:
http://www.newthinktank.com/2014/09/php-mysql-tutorial/
在文件getstudentinfo.php的文件开头
你应该有require_once('../mysqli_connect.php');
但是你有 require_once('../../practiceWebDev');
(这行代码中没有文件名!)
所以我认为只需更改这行代码并使用正确的路径+文件名应该可以解决您的错误
更新:
再次从我在您的代码中看到的内容来看，在 studentadded.php 文件中您有以下代码行:
require_once('../mysqli_connect.php');
因此，如果您的 studentadded.php 文件工作正常且没有错误，则只需使用此行更改 getstudentinfo.php 文件中生成错误的行即可。
关于php - 使用 xampp 的 PHP 应用程序的权限被拒绝，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46310556/